9 cswip 3.1 welding notes unsolved question with given answers table most important question answers...

8/11/2019 9 Cswip 3.1 Welding Notes Unsolved Question With Given Answers Table Most Important Question Answers Solved

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SPECIMEN WRITTEN EXAMINATION QUESTIONS

CSWIP 3.1

1.1 Part A and Part A2

Candidates are required to tick, or otherwise indicate, the corrective answer in thesection provided. There is onl one correct answer !or each question.

1 Applin" preheat when weldin" car#on $an"anese steel is nor$all done

to avoid%

a& Sla" inclusions

#& 'dro"en crackin"c& (ack o! sidewall !usion

d& Porosit

2 Which o! !ollowin" $echanical properties o! a weld in car#on $an"anese

steel is $ost a!!ected i! the heat input per unit len"th o! weld ise)cessivel hi"h*

a& +lon"ation

#& Tensile stren"th

c& 'ardnessd& Tou"hness

3 ou o#serve centerline crackin" a weld that as #een $ade one o! !ivework stations each $akin" si$ilar co$ponents. The !irst action to take is%

a& I$pound all weldin" consu$a#les#& -eport the occurrence to hi"h authorit

c& Stop all weldin"

d& Call !or !ull /T checks

0 Which o! the !ollowin" de!ects is unlikel to #e !ound # visual

inspection.

a& (inear $isali"n$ent

#& ndercut

c& verlap

d& (inear sla" inclusion

Which o! the !ollowin" weldin" processes uses a resisitive heatin" sste$to achieve weld $etal deposition.

a& 4anual $etal arc weldin"

#& Su#$er"ed5arc weldin"c& +lectro sla" weldin"

d& -esistance spot weldin"

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6 Which o! the !ollowin" units could Charp 7 notch ener" #e $easured

in*

a& Pounds per square inch

#& 8oules

c& ewtons per square $illi$eterd& one o! the a#ove

9 The usual $ethod o! assessin" the sensitivit o! radio"raph is # $eans o!a%

a& /osi$eter

#& :luoroscopec& I;I < Penetra$eter&

d& Clino$eter

= nder nor$al contract conditions, weld procedure approval tests !or pipework are%

a& 4andator

#& /epend upon site and weather conditions

c& /ependent upon the contractor>s con!idence in his proceduresd& nl required when C2 weldin" is to #e used.

? Which o! the !ollowin" destructive tests is not nor$all required !or

welder approval test !or $ild steel*

a& @end test

#& 4acro e)a$inationc& I$pact tests

d& :racture tests

1 'dro"en controlled electrodes were developed principall !or%

a& The prevention o! porosit

#& The prevention o! crackin"c& The enhance$ent o! arc volta"e

d& Their ease o! arc startin"

11 :or which o! the !ollowin" is pre5heatin" $ost likel to #e required*

a& Austenitic stainless steels#& 'i"h stren"th allo steels

c& (ow and $ediu$ stren"th steels

d& (ow car#on steels

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12 4anual $etal arc weldin" o! low allo steels is $ore likel to #e

per!or$ed with%

a& -utile electrodes

#& Cellulosic +lectrodesc& Iron powder electrodes

d& @asic hdro"en controlled electrodes

13 which o! the !ollowin" de!ects is $ore co$$on to weld deposited # the

C52 weldin" process than weld deposited # $anual $etal arc*

a& Sla" inclusion#& +)cess penetration

c& (ack o! side !usion

d& Tun"sten inclusions

10 Which de!ect would ou e)pect to o#tain in TIB welds in non5deo)idied

steel*

a& nder cut

#& Porositc& Tun"sten inclusions

d& (inear $isali"n$ent

1 Which o! the !ollowin" can arise !ro$ copper inclusions is a !errite steelweld*

a& Weld $etal cracks#& 'AD cracks

c& (a$ellar tearin"

d& Porosit

16 Which o! the !ollowin" is likel to "ive the hi"hest i$pact stren"th in

!erritic weld $etal*

a& Cellulosic electrodes

#& Su#$er"ed arc with acid !lu)

c& Spra trans!er Co525weldin"d& @asic coated nor$al $etal arc electrodes

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19 Which o! the !ollowin" $ethods o! /T would #e $ost likel to detect

lack o! side !usion in !erritic steel welds*

a& Penetrants

#& 4a"netic particles

c& -adio"raphd& ltrasonic !law detector

1= ou suspected that !erritic steel plates, which have #een ed"e, preparedcontain crack in the prepared ed"es. Which /T $ethod would ou use to

check this*

a& -adio"raph#& 4a"netic particle

c& Penetrants

d& ltrasonic !law detector

1? Which o! the !ollowin" de!ects do ou not e)pect to !ind # visual

e)a$ination o! co$pleted welds*

a& (inear sla" inclusions

#& nder cutsc& verlap

d& (inear $isali"n$ent

2 Stress relie! is not help!ul in one o! the !ollowin" cases. Which one*

a& In i$provin" resistance to stress corrosion crackin"

#& In di$ensional sta#ilit a!ter $achinin" i$provin"c& In lowerin" the peak residual stress

d& In so!tenin" the steel

21 What is the $a)i$u$ hardness usuall reco$$ended !or the 'AD o! a

$ediu$ stren"th !erritic steel weld*

a& 1 /P 'v#& 3 /P '7

c& /P 'v

d& 9 /P 'v

22 What e!!ect to $idthickess la$ination in steel plate nor$al have when

the are located within a weld 'AD*

a& Cause la$ellar tearin"

#& :use to"ether to !or$ a #ond

c& A!!ect the weld $etal co$positiond& Cause internal tearin" on a $icro5scale

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23 When hdro"en control is speci!ied !or a $anual $etal arc5weldin"

proEect the electrode would nor$all #e%

a& Cellulosic

#& Iron o)idec& Acid

d& @asic

20 ou would with certaint reco"nie a hdro"en controlled !lu) covered

electrode !ro$ its%

a& Color#& (en"th

c& Trade na$e

d& AWSF@S63? Code (etter

2 When $anual $etal arc weldin" is #ein" carried out on an open

construction site, which "roups o! welder are $ost likel to requirecontinuous $onitorin"*

a& Concrete shutterin" weldin" tea$#& Pipe welders

c& Plater welders

d& Plant $aintenance welders

26 ou noticed $anual $etal arc weldin" electrodes, stripe o! !lu), are #ein"

used as !iller wire, !or TIB weldin". ou would o#Eect #ecause%

a& It is too e)pensive

#& The wire would #e too thick

c& The weld $etal co$position $a #e wron"d& The wire is too short

29 When open site workin", serious porosit in $anual $etal arc weldin" is

#rou"ht to our attention. What would ou investi"ate*

a& +lectrode tpe

#& Power plant tpec& +lectrode stora"e

d& /a te$perature

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3? @end test speci$ens have #een taken !ro$ a 2 $$ thick car#on steel #utt

weld. Which would show lack o! inter5run !usion%

a& Side #end

#& -oot #end

c& :ace #endd& Buided #end

0 (a$ellar tearin" has #een occurred in steel !a#rication. @+:-+ weldin"could it have #een !ound #%

a& 5ra e)a$ination

#& /e penetrantc& ltrasonic inspection

d& It would not have #een !ound # an inspection $ethod

01 ou are to over see arc weldin" o! so$e $achine !ittin"s and !ind the arecad$iu$ plated. What ou%

a& Per$it it to proceed#& Per$it it to proceed with !u$e e)traction

c& Stop the operation at once

d& Advise the welder to drink $ilk and proceed

02 What two !unctions in arc weldin" $ust #e in equili#riu$ to ena#le a

sta#le arc to #e esta#lished*

a& Arc volta"e

#& Currentc& WireFelectrode !eed rate

d& 4etal #urn5o!! rate

03 In 44A weldin", what para$eter is used !or the control penetration intothe #ase $aterial*

a& 7olta"e#& Weldin" speed

c& Iron powders in the coatin"

d& Current

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In 44A weldin", the sla" produced can #e varied to suit the weldin"

positionK which tpe o! sla" would #e required !or weldin" in the '7

position*

a& :luid

#& 7iscousc& one o! the a#ove

d& Se$i !luid

1 The weld $etal deposits o! $anual $etal arc electrode achieves its

$echanical stren"th throu"h*

a& The core wire#& The !lu) coatin"

c& Iron powder with the !lu) coatin"

2 What constituent is needed in coatin" o! electrode o! an electrode to

prevent !or$ation o! porosit in weldin" o! ri$$in" steel*

a& Iron powder#& Calciu$ !luoride

c& Silicon

d& Calciu$ car#onate

3 Welds $ade with hi"h heat inputs show a reduction in one o! the

!ollowin" properties*

a& /uctilit

#& Tou"hness

c& :ati"ue stren"thd& 4echanical stren"th

0 In the weldin" o! Austenitic pipe work, the #orer is usuall pur"ed with Arto*

a& Prevent !or$ation o! porosit in the weld

#& Prevent #urn5throu"h in the root runc& Prevent o)idation o! the rood #ead

d& +li$inate the !or$ation o! '2

In 5ra the qualit o! the radio"raph ne"ative is assessed # the*

a& /ensit o! the :il$#& I;I indicator

c& H7A availa#le

d& Stand5o!! distance

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6 A steel descri#ed, as ;T will have i$proved tensile properties it has*

a& 'ad control o! che$ical co$position#& @een heat treated

c& @een qualit tested

d& @een vacuu$ $elted

9 Which one o the !ollowin" steels would "ive rise to the !or$ation o!

porosit when auto"enousl welded with an arc process*

a& :ull killed steel

#& Se$i killed steel

c& -i$$in" steeld& :ine "rained steel

= In su#$er"ed arc weldin", the use o! e)cessivel hi"h volta"e would

result in*

a& Insu!!icient !lu) $eltin"#& +)cessive !lu) $eltin"

c& Sla" re$oval di!!iculties

d& Spatter

? The use o! cellulosic electrode is o!ten $ade when weldin" the root pass

o! pipes in the !ield. This is #ecause*

a& 'dro"en control is needed

#& Iron powder in the electrode

c& 'i"her arc volta"e can #e o#tainedd& Shorter arc len"th can #e achieved

6 In the weldin" o! Austenitic stainless steels, the electrode and plate$aterial can #e purchased with low car#on contents. The reason !or this is

to prevent*

a& Crackin" I the 'AD#& The !or$ation o! chro$iu$ car#ides

c& Crackin" in the weld $etal

d& /istortion

61 Su#$er"ed arc !lu)es can #e supplied in two !or$sK thses are*

a& Sintered and a"itated

#& A"itated and !used

c& Crushed and a""lo$erated

d& :used and a""lo$erated

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62 In a steel, which has i$proved creep properties at elevated te$perature,

which one o! the !ollowin" ele$ents helps in this i$prove$ent*

a& Tun"sten

#& 4an"anese

c& 4ol#denu$d& Car#on

63 Weldin" a steel plate o! C+ o! .0 would require preheatin" to*

a& Prevent the !or$ation o! sulphides

#& Prevent hardenin" in the 'AD

c& Prevent the !or$ation o! car#idesd& To i$prove $echanical properties in the weld

60 Which o! the !ollowin" processes uses the Lkeholin"M

sste$ o! !usion*

a& :riction weldin"#& /i!!usion #ondin"

c& +lectron #ea$ weldin"

d& Auto"enous TIB weldin"

6 In !riction weldin", is the $etal at the inter!ace in the*

a& (iquid state#& Solid state

c& Plastic state

d& +lastic state

66 Weldin" procedures $a require welds to #e deposited at a controlled rate

heat input. 'i"h heat inputs would*

a& 'ave poor pro!ile

#& 'ave lar"er "rain sie

c& 'ave hi"h hardness in the 'ADd& 'ave low elon"ation properties

69 In a tensile test, a #rittle $aterial would #e indicated i! the !racturesur!ace*

a& Shows reduction in sie#& Is !lat and !eatureless

c& @reaks in the weld $etal

d& @reaks in the parent $aterial

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6= What destructive test would #e required to ascertain the likelihood o!

crackin" in the 'AD o! a weld*

a& ick #reak

#& Side #end test

c& Charp inputd& 4acro test

6? In su#$er"ed arc weldin", e)cessive arc volta"e $a cause*

a& +)cessive penetration

#& Chan"e in weld $etal co$position

c& arrow weld widthd& +)cessive #ead pro!ile

9 The @ritish code !or visual inspection require$ents is%

a& @S0=92#& @S0??

c& @S0=9

d& one o! the a#ove

91 A code o! practice !or visual inspection should cover the !ollowin"%

a& @e!ore, durin" and a!ter weldin" activities#& @e!ore weldin" activities onl

c& A!ter weldin" activities onl

d& one o! the a#ove

92 Inco$plete penetration in a #utt Eoint could #e caused #%

a& +)cessive root !ace width

#& +)cessive root "ap sie

c& (ow current settin"

d& @oth A N C

93 Inco$plete root !usion weld certainl #e caused #%

a& (inear $isali"n$ent

#& Incorrect tilt an"le

c& /i!!erin" root !ace widthsd& All o! the a#ove

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90 When visuall inspectin" a co$pleted sin"le vee #utt weld cap ou would

certainl assess%

a& Cap hei"ht

#& Toe #lend

c& Weld widthd& A, @ N C

9 ou notice a ver LveedM ripple shape. This is $ost likel caused #%

a& Poor consu$a#le choice

#& Weldin" position

c& +)cessive travel speedd& All o! the a#ove

96 LToe #lendin"M is i$portant as it $a a!!ect%

a& Corrosion

#& :ati"ue li!ec& verlap tpe de!ects

d& All o! the a#ove

99 Sla" inclusion would occur with%

a& 4anual $etal arc

#& 4etal inert "asc& Su#$er"ed arc weldin"

d& @oth A N C

9= ndercut principall caused #%

a& +)cessive a$ps#& +)cessive volts

c& +)cessive travel speed

d& All o! the a#ove

9? ndercut nor$all assessed #%

a& Its depth#& Its len"th

c& Its #lendin"

d& All o! the a#ove

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= A weldin" procedure is use!ul to%

a& Bive in!or$ation to the welder#& Bive in!or$ation to the inspector

c& Bive LCon!idenceM to a product

d& All o! the a#ove

=1 An essential varia#le $a%

a& Chan"e the properties o! the weld

#& In!luence the visual accepta#ilit

c& -equire re5approval o! a weld procedure

d& All o! the a#ove

=2 A $a"ni!in" "lass $a #e used durin" visual inspection #ut @S 2=?

states that its $a"ni!ication should #e%

a& p to

#& 2 J 2.

c& J 1

d& one o! the a#ove

=2 When visuall inspectin" a !illet weld, it would nor$all #e LsiedM #%

a& The le" len"ths

#& The actual throat thickness

c& The desi"n throat thickness

d& @oth A N C

=3 The planar de!ect is%

a& Inco$plete !usion de!ects

#& Sla" inclusionc& Inco$plete penetration

d& @oth A N C

=0 Penetrant and 4a"netic particle inspection are $ainl used to%

a& Aid visual inspection#& @ecause application standard sas soc& To con!ir$ Lvisual uncertaintiesM

d& All o! the a#ove

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= /e!ects outside o! the li$its speci!ied in a standard should alwas #e%

a& -epaired#& -eported to La senior personM

c& Assessed alon" with other de!ects

d& All o! the a#ove

=6 4IB weldin" tends to #e suscepti#le to lack o! !usion pro#le$s. This is

#ecause o!%

a& Poor $aintenance o! equip$ent

#& Incorrect settin"

c& Poor inter run cleanin"d& All o! the a#ove

=9 4anual $etal arc electrodes can #e "rouped into three $ain tpes. Thses

are%

a& @asic cellulosic and rutile#& eutral cellulosic and rutile

c& @asic cellulosic and neutral

d& one o! the a#ove

== The $ain causes o! porosit in welded Eoints are%

a& Poor access#& (oss o! "as shield

c& L/irtM $aterials

d& All o! the a#ove

=? LWeave techniqueM $a "ive rise to%

a& @etter pro!iles

#& I$proved toe #lendin"

c& I$proved ripple shape

d& All o! the a#ove

? Cracks in welds $a #e due to%

a& Solidi!ication pro#le$s

#& 'dro"en pro#le$s

c& +)cessive stressesd& All o! the a#ove

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?1 With re!erence to a root penetration #ead, ou could certainl assess%

a& -oot !usion and penetration#& -oot concavit

c& @urn5throu"h

d& All o! the a#ove

?2 A !ati"ue !ailure characteristic # the appearance o! the !racture sur!ace. It

would #e%a& -ou"h and torn

#& LCheveronM J like

c& S$ooth

d& one o! the a#ove

?3 LStra arcin"M $a #e re"arded as a serious de!ect. This is #ecause%

a& It $a reduce the thickness di$ension o! a co$ponent#& It $a cause liquation cracks

c& It $a cause hard onesd& All o! the a#ove

?0 verlap in welds could #e in!luenced #%

a& Poor weldin" technique

#& Weldin" process

c& Weldin" positiond& All o! t he a#ove

? :la$e cut preparations $a, durin" weldin", increase the likelihood o!%

a& Crackin"

#& 4isali"n$ent pro#le$sc& Inclusions

d& All o! the a#ove

?6 4acroscopic e)a$ination requires an speci$en to #e inspected%

a& nce, a!ter etchin"

#& Twice, #e!ore and a!ter etchin"c& sin" a $icroscope

d& one o! the a#ove

?9 Which o! the !ollowin" $a #e classes as a L$ore serious de!ectM%

a& Sla" inclusions

#& :usion de!ects


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?= Code o! practice is%

a& A standard !or work$anship onl#& A set o! rules !or $anu!acturin" a speci!ic product

c& (evels o! accepta#ilit o! a weld$ent

d& one o! the a#ove

?? 4ove$ent o! the arc # $a"netic !orces in544A weldin" is ter$ed%

a& Arc deviation

#& Arc $isali"n$ent

c& Arc #low

d& Arc ee

1 A $etallur"ical pro#le$ $ost associated with su#$er"ed arc weldin" is%

a& 'dro"en crackin" in 'AD#& Solidi!ication crackin" in the weld $etal

c& 'dro"en crackin" in the weld $etald& (a$ellar tearin" in the weld $etal

11 ) pressure and nole sie would in!luence what in !la$e cuttin"%

a& The te$perature required !or cut initiation

#& The a#ilit to cut stainless steels

c& The depth o! cut o#taina#led& one o! the a#ove

12 The $ain uses o! arc cuttin"F"ou"in" processes is in%

a& The cuttin" o! sin"le #evel preparations

#& The re$oval o! deposited weldsc& The cuttin" o! sin"le 5tpe preparations

13 Which o! the !ollowin" processes Eoins $etals plasticall%

a& :riction weldin"

#& -esistance weldin"

c& Plas$a weldin"d& All o! the a#ove

10 Which electrode classi!ication would #e relevant AWS A .15=1%

a& + 613

#& + 133

c& + 91= J Bd& :leet weld

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1 Which o! the !ollowin" coatin" is associated with LStoveM weldin"K

a& -utile#& Cellulosic

c& @asic

d& )idiin"

16 A co$$on "as $i)ture used in 4IB weldin" nickel allos to co$#ine

"ood levels o! penetration with "ood arc sta#ilit would #e%

a& 1G C2

#& 1G ar"on

c& =G ar"on 2G C2d& ?=G ar"on 2G o)"en

19 The tpe o! SAW !lu) is $ore resistance to $oisture a#sorption%

a& :used

#& A""lo$eratedc& @asic

d& All o! a#out the sa$e resistance

1= The !la$e te$perature o! o)Facetlene $i)ture "as is "iven as%

a& 32C

#& 23C

c& C

d& one o! the a#ove

1? A lar"e "rain structure in steels is said to produce%

a& (ow ductilit values

#& (ow !racture tou"hness values

c& 'i"h !racture tou"hness valuesd& 'i"h tensile stren"th

11 The likelihood o! #rittle !racture in steels will increase with%

a& A lar"e "rain !or$ation#& A reduction o! in service te$perature to su# ero levels

c& :erritic rather than austenitic steelsd& All o! the a#ove

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111 -epair weldin" is o!ten $ore di!!icult than production due to%

a& The $aterial #ein" in"rained with in5service conta$inates#& -estricted access with the repair area

c& The possi#le position o! the weld

d& An o! the a#ove

112 'dro"en crackin" in the weld $etal is likel when%

a& Car#on $an"anese steels

#& Stainless steels

c& 4icro alloed steels


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119 The process o! te$perin" is o!ten carried out to re"ain tou"hness a!ter

which o! the !ollowin" processes%

a& Annealin"

#& or$aliin"

c& 'ardenin"d& Stress relievin"

11= The presence o! iron sulphide in the weld $etal is $ost likel to producewhich o! the !ollowin" upon contraction o! the weld%

a& Solidi!ication crackin"

#& 'dro"en crackin"c& Inter"ranular corrosion

d& Stress corrosion crackin"

11? Benerall the $ost suita#le $ethod o! detectin" lack o! sidewall !usionwould #e%

a& ltrasonic

#& 4PI

c& -adio"raphd& Penetrants

12 'ot shortness ter$ is used to indicate%

a& (a$ellar tearin"

#& Solidi!ication crackin"

c& 'dro"en crackin"d& one o! the a#ove

121 The use o! co#alt as an isotope would "enerall #e used on%

a& Thin $aterials

#& Tee Eoints

c& Plate thickness "reater than 2$$d& one o! the a#ove

122 In weldin" procedure ter$, a chan"e in essential varia#le $eans

a& -e5quali!ication o! the weldin" procedure

#& Possi#le chan"e in the weld>s $icrostructurec& Possi#le chan"e in t he $echanical properties

d& All o! the a#ove

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123 Weld s$#ol placed on a dotted line in accordance with IS require$ents

$eans%

a& Weld on LarrowM side

#& Weld on LotherM side

c& Weld on sited& :ull penetration required

120 A weldin" inspector>s $ain attri#ute includes%

a& Hnowled"e and e)perience

#& (iterac

c& 'onest and inte"ritd& All o! the a#ove

12 The correct ter$ !or a Eoint prepared on one co$ponent onl is%

a& A #evel #utt

#& A 8 #uttc& A LHM #utt

d& All o! the a#ove

126 Technicall a code o! practice is%

a& A standard

#& A Lset o! rulesM !or the $anu!acture o! a productc& -elated to welder and weld procedure approval

d& All o! the a#ove

129 The correct ter$ !or cap hei"ht is%

a& -ein!orce$ent#& Cap pro!ile hei"ht

c& +)cessive weld $etal

d& All o! the a#ove

12= A tensile test will assess

a& I$pact values#& Stress

c& Strain

d& @oth a& N c&

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12? The i$portant point i! hi"h te$perature steel is that%

a& The can withstand creep !ailure#& The $a su!!er re5heat crackin" pro#le$s

c& The $a su!!er loss o! tou"hness

d& All o! the a#ove

13 An austenitic stainless steel $a su!!er%

a& Weld deca

#& Sensitiation

c& Solidi!ication crackin"

d& All o! the a#ove

131 Car#on equivalent values are use!ul to deter$ine%

a& Weld a#ilit aspects#& Crack sensitivit aspects

c& Tpical $echanical propertiesd& All o! the a#ove

132 A #asic electrode would nor$all%

a& 'ave superior $echanical properties

#& -equire #akin" #e!ore use

c& ot #e used on low car#on steelsd& @oth a& and #&

133 When re!errin" to TIB weldin", the shieldin" "as could #e%

a& Ar"on O 'dro"en

#& Ar"on O 'eliu$c& Ar"on O itro"en

d& All o! the a#ove

130 When re!errin" to 4IB weldin", the shieldin" "as could #e%

a& Ar"on#& Ar"on O 1G )"enc& Ar"on O 2G C2

d& one o! the a#ove

13 Su#$er"ed arc utilities%

a& /eep penetration characteristic

#& 'i"h deposition rate on /COc& :lat


24/34

136 ltrasonic would #e pre!er over radio"raph due to%

a& A#ilit to !ind $ore de!ects#& (owest skill require$ents

c& A#ilit to detect la$inations

d& @oth a& and c&

139 The $ost serious de!ects

a& Planar

#& Cracks

c& (ack o! !usion

d& All o! the a#ove

13= The welda#ilit o! a $aterial $a #e a!!ected #%

a& Te$perature o! the co$ponent#& The C.+. G o! the $aterial

c& The ele$ents in the $ateriald& All o! the a#ove

13? Post heat treat$ent%

a& 4ust #e applied to welds i! a crack !ree weld is required1

#& Should never e)ceed 3 d" C

c& 4a stress relieved& 4ust alwas #e applied usin" "as !la$es

10 Which o! the !ollowin" weldin" processes $a #e descri#ed, as a lowhdro"en process in co$parison with "eneral 44A weldin"%

a& TIB#& 4IB

c& 4AB

d& one o! the a#ove

e& All ! the a#ove

101 Which !or$ o! /T could #e used on a !illet weld on alu$inu$*

a& /e penetrant testin"

#& ltrasonic testin"

c& -adio"raphd& 4PI

e& a, # and c

!& / onl

"& All o! the a#ove

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102 Which o! the !ollowin" /T $ethods would not detect su#5sur!ace

de!ects*

a& 4PI

#& /e penetrant testin"

c& ltrasonic testin"d& -adio"raph

e& All o! the a#ove would detect su#5sur!ace de!ects

103 Wh have a hi"h .C.7. with 44A weldin"

a& To initiate the arc

#& To o#tain penetrationc& To avoid lack o! !usion

d& 44A weldin" does not have a hi"h .C.7.

100 What is the purpose o! a recti!ier> in relation to weldin" plant*

a& To adEust the volta"e#& To adEust the a$pera"e

c& To convert A.C to /.C.

d& To prevent arc strikes

10 :ish J ees, chevron cracks and !issures are%

a& ot associated with weldin"#& Tpes o! cracks

c& nl encountered in 44A welds

d& 'dro"en related pro#le$s

106 Pre heatin" prior to weldin"%

a& 4ust alwas #e carried out

#& eed not #e carried out i! post heat treat$ent is to !ollow weldin"

c& Is alwas carried out usin" "as !la$e

d& one o! the a#ovee& All o! the a#ove

109 What does pre heat prior to weldin" have an a!!ect on%

a& 'ardena#ilit

#& Welda#ilitc& Coolin" rate

d& All o! the a#ove

e& one o! the a#ove

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10= The toes o! the cap on a #utt weld%

a& 4ust overlap on the e)ternal sur!ace o! a pipe or plate # at least1.$$

#& 4ust #e "rounded

c& 4ust never #e "roundedd& one o! the a#ove

10? Which o! the !ollowin" #utt5weld preparations is "enerall $ostsuscepti#le to lack o! side wall !usion> durin" 44A weldin"*

a& A > preparation

#& A 7> preparationc& A dou#le 7> preparation

d& (ack o! side wall !usion does not e)ist with 44A

1 What is the le" len"th o! a !illet weld*

a& The distance !ro$ the toe to the !ace#& The distance !ro$ the root and to the !ace center

c& The distance !ro$ the root to the toe

d& The distance !ro$ toe to toe

11 What is throat> thickness o! the !illet weld*

a& The distance !ro$ toe to the !ace#& The distance !ro$ the root to !ace center

c& The distance !ro$ the root to the toe

d& The distance !ro$ toe to toe

12 ;ualit assurance is%

a& The inspection o! a product or service

#& A $ana"e$ent sste$ desi"ned onl to ensure $aterial

co$pati#ilit

c& ot solel related to plannin" and inspectiond& The i$ple$entation o! qualit control

13 Which weldin" process is considered the $ost versatile*

a& SAW

#& TIBc& 4IBF4AB

d& 44A

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10 ;ualit assurance%

a& Is an other ter$ !or inspection#& -elated to all activities and !unctions concerned with the

attain$ent o! qualit

c& Is the activit o! ensurin" docu$ents relatin" to speci!ic contractsare in order

d& Is the activit o! carrin" out qualit control

1 Which /T $ethod would never #e use on a 6M alu$inu$ pipe weld*

a& -adio"raph

#& 4a"netic particle inspectionc& ltrasonic testin"

d& /e penetrant testin"

16 Wh is hot J pass so5called*

a& @ecause it is applied at a hi"h a$pera"e#& @ecause it is applied when the root is still hot

c& @ecause it could cause hot J shortness>

d& @ecause it heat treats the root

19 Benerall speakin" a weldin" inspector, as a $ini$u$ require$ent%

a& 4ust have at a thorou"h knowled"e o! /T#& 4ust know how to interpret radio"raphs

c& 4ust have a thorou"h knowled"e o! weldin" $etallur"

d& one o! the a#ovee& All o! the a#ove

1= Which o! the !ollowin" is not an inert "as*

a& Ar"on

#& enon

c& Car#on dio)ided& 'eliu$

1? Wh is weldin" is shielded*

a& To eli$inate hdro"en

#& To retard the coolin" rate o! the weldc& To eli$inate the at$osphere

d& To ensure $a)i$u$ heat input

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16 The pri$ar dut o! weldin" inspector%

a& Is ensure welds are de!ect !ree#& Is to ensure the weld is !ree !ro$ residual stresses

c& Is to write Eo# speci!ications

d& Is to ensure all weldin" and associated activities are carried out inaccordance with the procedure purposes

d& nl !easi#le on steels

e& All o! the a#ove

163 API stands !or

a& Associated Pipeline Industries#& A$erican Pipe Institute

c& A$erican Pipeline Institute

d& A$erican Petroleu$ Institute

160 When weldin" usin" the 44A process, varin" the arc len"th will "ive

the $ost variation o!%

a& 7olta"e

#& A$pera"e

c& Polaritd& one o! the a#ove

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16 (ap Eoints contain%

a& :illet welds#& Corner Eoints

c& @utt welds

d& Sin"le #evel #utt welds

166 Which arc weldin" process utilies a non5consu$a#le electrode*

a& 4IB

#& TIB

c& 44A

d& SAWe& All o! the a#ove

169 A weldin" Inspector%

a& 4ust know how to interpret radio"raphs

#& 4a #e required to interpret radio"raphs on certain contractsc& Should #e a#le to weld

d& @oth # and c

e& All o! the a#ove

16= Which electrodes are ver suscepti#le to causin" porosit in the deposited

welds i! lon" arc e$ploed*

a& @asic

#& Cellulosic

c& -utiled& one o! the a#ove

16? What do ou understand # the ter$ $ini$u$ interpass te$peratureM

a& 4ini$u$ pre heat te$perature

#& 4ini$u$ stress relieve te$perature

c& The lowest te$perature to #e used when nor$aliin"d& The lowest te$perature allowed durin" weldin" and #etween

passes

19 Is it per$issi#le to allow a sin"le 7> #utt weld to cool down passes*

a& It is solel the decision o! the welder#& It depends on the require$ent o! the procedure and speci!ications

c& It is solel the decision o! the weldin" inspector

d& o, all welds should #e co$pleted #e!ore droppin" the te$perature

to a$#ient

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191 What is the pro#le$ with restraint> durin" weldin"*

a& It does not cause a pro#le$#& It $a lead to crackin", especiall with s$all welds #etween lar"e

co$ponents

c& It causes distortiond& -estraint is ter$ not used in relation to weldin"

192 Which $echanical test


31/34

199 Strain is equal to%

a& Stress#& (oad divide # cross J sectional are

c& +)tension o! "au"e len"th divided # the ori"inal "au"e len"th

d& Tou"hness

19= Stress can #e $easured in%

a& F$$Q

#& PSI

c& $$

d& @oth a and #

19? What is a crater pipe*

a& An oval tu#e#& Another ter$ !or #urn throu"h

c& A tpe o! porositd& A shrinka"e de!ect

1= Which @ritish standard relates to weldin" ter$ and s$#ols

a& @S 63?

#& @S 63=

c& @S 1=d& @S 0??

1=1 'ow could ou accuratel $easure the root radius o! a charp or Iodspeci$en*

a& With a $achine called shadow"raph#& With a rule

c& With a vernier caliper

d& With a densito$etr

1=2 'errin"#one porosit is%

a& A particular pattern o! porosit#& 4ade up o! wor$holes

c& 4ade up o! pipin"

d& All the a#ove are correcte& one o! the a#ove

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1=3 A crack is a weld one%

a& Is repaira#le#& Alwas results in s cut J out and co$plete reweld

c& Is accepta#le up to 2$$ in len"th

d& 4a #e repaired or cut J out dependin" on speci!icationrequire$ents.

1=0 I! the a$pera"e were too low durin" the weldin" o! a root #ead thepossi#le result would #e%

a& (ack o! penetration

#& (ack o! !usionc& The !reein" o! the electrode

d& All o! the a#ove

1= Stress actin" in the opposite direction o! co$pressive stress is known as%

a& -esidual stress#& Shear stress

c& 'oop stress

d& Tensile stress

1=6 /istortion $a #e a!!ected #%

a& -estraint#& 'eat J input

c& 4aterial properties

d& 4aterial thicknesse& All o! the a#ove

1=9 /istortion%

a& Is plastic de!or$ation

#& Is elastic de!or$ation

c& Is another ter$ !or stressd& 4a #e elastic or plastic de!or$ation

e& All o! the a#ove

Page 32 of 34


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1 @ 31 C 61 / ?1 / 121 / 11 @ 1=1 A

Page 33 of 34


34/34

2 / 32 A 62 C ?2 C 122 / 12 C 1=2 +

3 @ 33 / 63 @ ?3 / 123 @ 13 / 1=3 /

0 / 30 A 60 C ?0 / 120 / 10 @ 1=0 /

/ 3 @ 6 C ? / 12 / 1 @ 1= /

6 @ 36 A 66 @ ?6 @ 126 @ 16 / 1=6 +

9 C 39 A 69 @ ?9 C 129 A 19 / 1=9 /= A 3= @ 6= @ ?= @ 12= / 1= C

? C 3? A 6? @ ?? C 12? C 1? C

1 @ 0 / 9 / 1 @ 13 / 16 /

11 @ 01 C 91 A 11 C 131 / 161 @

12 / 02 A 92 / 12 @ 132 / 162 @

13 C 03 A 93 / 13 A 133 @ 163 /

10 @ 00 C 90 / 10 A 13 A 160 A

1 A 0 C 9 C 1 @ 13 C 16 A

16 / 06 / 96 / 16 @ 136 C 166 @

19 / 09 / 99 / 19 A 139 / 169 @

1= @ 0= / 9= A 1= A 13= / 16= A1? A 0? / 9? / 1? @ 10? C 16? /

2 @ @ = / 11 A 10 + 19 @

21 * 1 @ =1 / 111 / 101 @ 191 @

22 A 2 C =2 @ 112 C 102 @ 192 C

23 / 3 @ =3 A 113 C 103 A 193 /

20 / 0 C =0 / 110 @ 100 C 190 C

2 @ @ = C 11 C 10 A 19 C

26 C 6 @ =6 / 116 A 106 / 196 @

29 C 9 C =9 A 119 @ 109 / 199 C

2= @ = @ == / 11= A 10= A 19= C

2? C ? @ =? / 11? A 10? A 19? /

3 A 6 @ ? / 12 @ 1 C 1= /

9 cswip 3.1 welding notes unsolved question with given answers table most important question answers...

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